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Design Alterations of a High Power Air Transducer
Responsible organisation
2007 (English)In: Japanese Journal of Applied Physics, ISSN 0021-4922, E-ISSN 1347-4065, Vol. 46, no 7, 4908-4911 p.Article in journal (Refereed) PublishedAlternative title
Designändringar av en högamplitudsluftsändare. (Swedish)
Abstract [en]

For certain resonant high-power air transducers exists a radiating cone which is in some way connected to a forcing piezoelectric ceramic. This study focuses purely on the cone structure itself, and the form of excitation that gives desired results on the vibration modes of the cone. In the new design three different parameters are changed from existing devices. They are: 1) the change of the round piezoelectric disc center position to a piezoelectric ring shape, while making the cone center fixed, 2) the cutting of the cone into leaves, and 3) the radial thickness decreasing with radius. In simulations, the new design yields considerably higher vibration amplitudes.

Abstract [sv]

En högamplitudsändare för luft har utvecklats. Jämfört med existerande sändare har tre designändringar gjorts som innebär en väsentligt ökad vibrationsamplitud, och därmed ett större ljudtryck.

Place, publisher, year, edition, pages
2007. Vol. 46, no 7, 4908-4911 p.
Keyword [en]
Ultrasonic transducer, Vibration response, Air-coupled transducer, Acoustic air transducer, High power air transducer
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:bth-9052ISI: 000248545500098Local ID: oai:bth.se:forskinfoA786CB02C756C581C1257336002FD870OAI: oai:DiVA.org:bth-9052DiVA: diva2:836828
Available from: 2012-09-18 Created: 2007-08-13 Last updated: 2015-06-30Bibliographically approved

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Hedberg, Claes
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